Ervan Dharmawan Email & Phone Number

Kuala Lumpur, My

Federal Territory Of Kuala Lumpur, Malaysia

Jakarta, Jakarta, Indonesia

Cosmart is a technology startup with a mission to help users save time, money and mental burden in making recurring expenditures.We develop a membership-driven B2C platform, where our members purchase their recurring needs at larger quantities with competitive prices. We partner with hundreds of suppliers that provide thousands of products across 9 categories to be the one-stop shop for our household and business customers alike. In purchasing with us, customers always get peace of mind and the best value for their money.What I've done:Platform Backend:- Design & Implement E2E payment system- Building new features- Implementing unit tests using jest and go testOperations Services:- Kick-start operations services using golang- Design and Execute integration with Inventory Management System, Warehouse Management System and Financial system- Involved in inter-app communication designInfrastructure:- Migration of our services from Lightsail to ECS to allow more flexibility in our approach- Use terraform to provision our infrastructure- Setup monitoring and alerts in cloudwatch- Setup jaeger for tracing

Jakarta, Indonesia

Leading in optimizing current system to reduce application load and crash rate. - Reduce user search API load time from 1 minute to only around 10 seconds. - Set up monitoring for iOS and Android application using sentry. - Identify not optimized codes and create strategy to optimize the code for example using cache and indexing user table using full-text search. - Setup prometheus and grafana for service metrics. - Setup elasticsearch to get localization information by the value instead of the key.

Indonesia

I am using Swift for the development of OKHOME's iOS app, here are some achievements: - Created custom networking layer using RxSwift and Alamofire to reduce boilerplate needed when doing network calls- Integrate new payment methods in iOS (OVO, Gopay, Dana) - General improvements in iOS app (stability and features)- Refactor code to enable Test Driven Development- Implement Unit Test- Implemented new UI design for front page- Implemented custom ui transition to allow a modal screen to be shown only partially- Reduce crash rate from 10% to 1% (Tracked using firebase crashlytics)- Separate API Module from Application module to create a clear separation (for testing and documentation purposes)- Localization and Internationalization of OKHOME iOS app.- Helping in designing API request and response. Standarized error codes.- Introduce and implement dependency injection instead of static variables for singleton pattern to ease testing.- Created staging, dev, and production environment for iOS app.- Created CICD for iOS app using Jenkins.

Jakarta Metropolitan Area

- Create secret management for service to remove credentials from repository.- Hotel deposit management system. This system is created to make sure that each hotel have the right amount of deposit and can be used to reduce payment from Airy's side to hotel's. This system also reduce the time needed for finance team to check how much we must pay the hotel.

Greater Jakarta Area, Indonesia

- Developed payout system for hotel payout automation- Created grpc annotations processor to make implementation in java easier- Automated monthly insurance report calculation- Kick-starting migration from old front end framework to maleo.js(airy's front end framework)

Jakarta

- Automated cash delivery system with predictions using statistical model and Opticash's prediction.- Created the app for cash delivery system that reduce time needed for prediction from ~30 minutes each third party to only ~2 minutes.- Setup database on on-premise server.- Online treasury account registration with verification to Bank Indonesia

Bachelor'S Degree, Computer Science, 3.77 / 4.00

High School, Mathematics

Junior High School